Dumping truck



ffl

2 SheecsSl'reefrI win erkennt De@v 28 1926.

T. H. CLARK DUMPING TRUCK Filed August 22. 1923 Patented Bee. 28, 1925.

naires STATES :raTsa-T .sT-Ties.

'THOMAS VI-I. .GLARK, OF MARION', OHIO.

DUMPING TRUCK.

Application filed August V252, 192,534

This invention relates to dumping vehicles and has special reference to the means for raising and lowering the load-containing body. One object .of the invention is to provide a compactandsimple mechanism Which may be easily ,operated by hand and effect the raising of the body to dumping position with a minimum effort. Another object of the invention is to so arrange the raisingand lowering mechanism that it will be protected from breakage or other damage with out necessitating any diminution of the ca` pac'lty of the body or adding any appreciable .dead weight to .the vehicle. These stated objects and .other objects Which will incidentally appear are attained in the use of such an apparatus asis illustratel in ,the accompanying drawings, andthe invention resides `in certain novel features Which will be hereinafter particularly pointed out.

In the drawings:

Figure 1 is a side elevation of so much -of a rtruck as is necessary to illustrate my invention, the body being illustrated in its lowered load-carrying position in full lines and raised to dumping position in dotted lines, and

Fig. 2 is a bottom plan View.

The chassis 1 may be of any convenient construction and its side and end members or bars are preferably formed from channel metal, as shown, the cab, a portion of which is shown at 2, being` carried upon the front end of the chassis in the usual manner. At the rear end of thechassis, I secure posts 8 which may be rigidly held in `place in any convenient manner but are preferably fixed to arms 3 which project laterally at the outer sides of the side bars of `the chassis and' are rigidly secured to said bars by U-bolts 4. At the upper ends of the Said,

posts are trunnions or pivot lmembers 4 which are engaged .by brackets 5 secure-1l to the sills 6 of the body 7 adjacent the rear ends of said sills, as Will .be readily understood, The sills are provided in any de sired number and are preferably angle bars so as to possess the requisite strength Without excessive Weight. The body 7 .is equipped atits rear end with an en d gate 8 which may be of any Well-known or preferred form and may be mounted to open automatically as the body is tilted to dumping position or may be otherwise mounted as preferred.

Inasmuch as the particular construction vstationary shaft 22.

Serial No. 653.784.

passing around and under the bars of the chassis, as shown and. as will be readily understood. I provide brackets or stops 11 which are rigidly secured upon .the frame in any .convenient manner and rise therefrom to form supports for the :front end of the body when `the same is lowered.

Bearing brackets 12 are provided at the frontend `of the frame 9 and the operatingv shaft 13 is rotatably mounted in these brackets and extends transversely ot' the vehicle, as shownand as Will be .readily understood. One end of the said shaft 13 is fitted in the hub of a drum or ratchet member 14,

the outer end of which is constructed with 'an -angular socket 15 to receive the correspondin-gly shaped end of a crank handle 16 which is removably engaged in the socket when the body is to be tilted so that rotation of the crank Will eifeetrotation of the member 14 andthe shaft 13, the said drum and ratchet member 14 being secured to the end of the shaft by a rivet, as indicated at 17.

On the inner end of the member 14 is formed a ratchet or annular locking member v 18, and pivotally mounted upon or adjacent ytliebearing brackets 12 above the saidA locking member is a paWl or. dog 19. The paWl or dog is so mounted that i-t may beI readily swung to `dispose its free end either in rear or in advance of the vertical plane of its pivot so that it may engage the radial lugs of the ratchet or locking member 18at either side and :thereby hold theY body in -either its dumping orits carrying position.

Between the sides of the frame 9,-a pinion 20 is securedupon the shaft 13, and this pinion-meshes with a gea-r 21 which is rotatably mounted upon a transverse rod or The pinion 2() is provided at its ends with shrouds or stop flanges 23 whereby its alinement with the At the front end of the frame 9,'

gear 21 is maintained and the gear 21fis integral with or has rigidly secured to its outer side a pinion 2li, the said pinion meshing with a gear 25 which` is rotatably mounted upon a transverse rod or stationary shaft 26 mounted in the frame 9. The shaft is disposed i-n rear and somewhatbelow the shaft or rod 22, as shown most clearly in Fig. V1, the shaft or rod 22 being mounted in brackets 27 forming a part of the frame The shafts or rods 22 and 26 may be but itis to be understood that other locking means may be employed without involving any departure from the invention. Formed integral wi-th or rigidly -secured to one side of the gear 25 is a pinion 29 which meshes with a segmental gear 30 loosely fitted upon the rod 22 at the side of the pinion 24. Projecting from the hub of the gear 30 is a lever arm 31 and to the sides of the said arm 31, l rigidly secure the extensions 32 which project beyond the end of the said arm and have their extremities turned laterally so as to diverge, as shown at 33. To the free ends of the said extension members 32, l

, pivotallyattach link-s 34 which extend upwardly and diverge and have their upper ends pi-votally attached to the adjacent sills G by a pivot pinV or rod 35 inserted transversely therethrough. A spacing sleeve 36 ris fitted about the said pivot rod 35 between the ends of the links 34 so as to n'iaintain the said ends in the properly spaced relation and thereby apply the lifting force in an effectual manner to the body 7.

The construction and arrangement ofthe several parts of the apparatus having been thus made known, it is thought the operation thereof will be readily understood. vWithl the parts arranged as shown in .full lines in Fig. 1, the dog 19 will prevent the rotation of the locking member 18 and the shaft 13 in a forward direction and will, therefore, hold the body down in its loadcarrying position so that accidental tilting of the body through hasty, careless or improper' loading thereof will be prevented. When it is vdesiredrto dump the load, the crank 16 is engaged in the socket 15, after which the vdog 19is swung over around its vivot so that it will engage the locking ratchet member 18 in advance of the vertical plane of the pivot and permit forward rotation of said member but prevent rearward rotation of the same. The crank 16 is then rotated in a clockwise manner so that the and transmitted through said links to the Y body i so that the parts will assume the position shown in dotted lines in Fig. 1, the paths of the pivots of the links being indicated by the series of arrows. When an impluse is imparted to the front end of the truck body through the links 34, any tendency of the body to merely slide rearwardly is overcome by the resistance of the pivots .el and the brackets cooperating therewith so Ahat the front end of the body will be caused to swing upwardly along an arc having the said pivot i as its center and the body will be thereby readily and quickly tilted to 1 dumping position so that the load mav'slide out through the rear end of the body.V llt` will be readily noted that the severalelements of the train of gearing are arranged in nested relation so that they are brought into a very compact Vform and will occupy very little space upon the chassis Vof the vehicle, and the force transmitted through the several gears will be applied to the body in such a manner that no undue-strain 1s required to raise the body to dumping posi- Vtion even when it is loadedto capacity.'

When the load has been discharged, the dog` or pawl 19 is returned to the position shown in Fig. 1 and the body may then be permitted to return to the load-carrying position through its own weight or may be positively returned through a reverse rotation of the crank and the shaft 13.

'lt will be readily noted that the only part of my mechanism which is carried beyond the vertical planes of the sides of the vehicle is the outer end of the member 14, all the working parts being disposed between the sides of the chassis and between the chassis and the body so that the chance of any of the parts being broken. through accidental blows is negligible.

1t will also be noted that all of the operating mechanism is mounted upon the frame 9 which is secured upon the chassis. The body-operating elements Ymay, therefore, be assembled upon the fra1ne9 and the lassembled elements and the frame secured as a unit upon. the chassis, theapplication of the mechanism to the truck being thereby facilitated. p

The unit 9 consists of a main, or forward lli auxiliary frame forming a dumping bearing bracket and comprising the members 3 and the connecting member 3a. As set forth, the main and the auxiliary frames are separately and independently secured to the side bars l of the chassis frame. As a result, when the truck is loaded and the wheel on one side should strike a ditch, or rut, and throw the chassis atwist it would not atl'ect the sub-frame because of its separate formation. Moreover, replacements and adjustments can be moi'e readily and economically made than would be the case if the sub-frame consisted of a single or unitary structure. rlhe front or main frame 9 consists of longitudinal bars 9a lying within the side bars l, a forward transverse bar 9b and a rear transverse bar 9. The transverse bars 9" and 9C connect the longitudinal bars 9a and project beyond the latter and rest upon the chassis frame bars l to which they are secured by the fastenings l0. The rear, or auxiliary frame forming the dumping bearing bracket consists of the members 3 and the transverse member Sa. The bracket members 3 are secured at their inner ends to the side bars l and their outer ends project laterallyvand rearwardly. The inner ends of the members 3 are preferably oppositely inclined. The outer rear ends of the members 3 extend beyond the rear ends of the side bars l in parallel relation and the connecting member 3a underlaps the projecting ends and abuts against the rear ends of the side bars l to which it is secured by angle brackets 3h.

Having thus described the invention, what is claimed as new is:

l. A dumping vehicle comprising parallel side bars, oppositely inclined brackets resting upon and secured to the rear portions of the side bars and extending rearwardly therefrom, atransverse member connecting the rear extensions of the brackets and abutting the ends of the side bars, angle brackets connecting the transverse member and side bars, a dumping body tiltingly mounted upon the said brackets, means mounted upon arm, and connecting means between the said arm and dumping body to effect a tilting thereof.

2. In a dumping vehicle including` parallel side bars, a dumping body tiltingly mounted upon the side bars, parallel longitudinal bars between and spaced inwardly from the side bars, front and rear transverse bars connecting the longitudinal bars and resting upon and secured to the side bars, Va transverse shaft mounted on the front transverse bar, shafts removably mounted in the longitudinal bars, a train of gearing having its elements loosely mounted upon the removable shafts and including' an arm and forming connecting means between the said arm and the transverse shaft, and connecting means between the arm and the dumping body to effect a tilting thereof.

3. The combination with a truck chassis including a frame having' side bars, and a body tiltingly mounted upon the chassis frame and having longitudinal vsills upon its bottom, of a sub-frame secured to the chassis frame, a train of gearing carried' by the sub-frame and including a forwardly extending arm, extensions secured to opposite sides of the arm and having their outer` THOMAS H. CLARK. [n s] 

